<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters">
        <el-form-item>
          <el-input v-model="filters.keyword" placeholder="关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="search()">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="employees" highlight-current-row v-loading="listLoading"
              @selection-change="selsChange" style="width: 100%;">
      <!--就是每行前面的那个 小框框-->
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="username" label="员工名字" width="100" >
      </el-table-column>
      <el-table-column prop="phone" label="手机号码" width="100" >
      </el-table-column>
      <el-table-column prop="email" label="邮箱" width="100" >
      </el-table-column>
      <el-table-column prop="age" label="年龄" width="100" >
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <!--
          scope：它可以获取到一行的数据 通过 scope.row
        -->
        <template scope="scope">
          <span style="color:green" v-if="scope.row.state === 1">在职</span>
          <span style="color:red" v-else-if="scope.row.state === 0">离职</span>
          <span style="color: #8c939d" v-else>未知</span>
        </template>
      </el-table-column>
      <el-table-column prop="deptName" label="所在部门" min-width="180" >
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条
     :disabled ： 是否展示 没有选中(数组长度为0)的时候 不能点击
                  选中了(数组长度不为0)的时候 可以点击
    -->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :current-page="currentPage" :page-size="pageSize" :total="total"
                     style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面-->
    <!--
    v-model：在elementUi2.x版本是双向绑定
              elementUi是1.x版本 是控制弹窗是否展示
    :rules="editFormRules" 输入框校验
    ref="editForm" ： 哪个表单引用
    prop="name" ： 输入框使用这个
    -->
    <el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
      <el-form :model="editForm" label-width="80px" :rules="editFormRules" ref="editForm">
        <el-form-item label="员工名字" prop="username">
          <el-input v-model="editForm.username" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="年龄" prop="age">
          <el-input-number v-model="editForm.age" @change="handleChange" :min="1" :max="100" label="年龄"></el-input-number>
        </el-form-item>
        <el-form-item label="手机号码" prop="phone">
          <el-input v-model="editForm.phone" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="editForm.state">
            <el-radio class="radio" :label="1">在职</el-radio>
            <el-radio class="radio" :label="0">离职</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="所在部门">
          <el-select v-model="editForm.deptName" placeholder="请选择">
            <el-option
              v-for="item in depts"
              :label="item.name"
              :value="item.id">
              <!-- 存在下面两个的时候，下拉框展示，优先展示下面的-->
              <span style="float: left">{{ item.name }}</span>
            </el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="editFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>
<script>

export default {
  data() {
    return {
      options: [],
      depts: [],
      title:'',
      filters: {
        keyword: ''
      },
      employees: [],
      total: 0,
      pageSize:5,
      currentPage:1,
      listLoading: false,
      sels: [],//列表选中列

      editFormVisible: false,//编辑界面是否显示
      editLoading: false,
      editFormRules: {
        username: [
          {required: true, message: '请输入员工姓名', trigger: 'blur'}
        ],
        age: [
          {required: true, message: '请输入年龄', trigger: 'blur'}
        ],
        phone: [
          {required: true, message: '请输入手机号码', trigger: 'blur'}
        ],
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'}
        ]
      },
      //编辑界面数据
      editForm: {
        id:null,
        username:'',
        phone:'',
        email:'',
        age:null,
        state:1,
        departmentId:null,
      },
    }
  },
  methods: {
    handleChange(age) {
      console.log(age);
    },
     getDepts(){
       // 去查询 部门数据
       this.$http.get("/dept")
         .then(result=>{
           this.depts = result.data;
         })
     },
     search(){
       this.currentPage = 1;
       this.getEmployees();
     },
     handleCurrentChange(val) {
       this.currentPage = val;
       this.getEmployees();
     },
     //获取员工列表
    getEmployees() {
       // para 对象
       let para = {
         pageSize: this.pageSize,
         currentPage:this.currentPage,
         keyword: this.filters.keyword
       };
       // 开启列表忙等
       this.listLoading = true;
       // 我们要发送Axios请求
       this.$http.post("/emp", para)
         .then(result => {
           // 请求成功
           this.listLoading = false;
           this.employees = result.data.rows;
           this.total = result.data.totals;
         })
         .catch(result => {
           // 请求失败
           this.$message({
             message: '没整出来哦，再改改？',
             type: 'error'
           });
         })
      },
     //删除   row：代表当前行的数据
     handleDel: function (index, row) {
       this.$confirm('确认删除该记录吗?', '提示', {
         type: 'warning'
       }).then(() => {
         // 1.后端没有将错误返回到前端 2.请求成功 http请求状态码 200
         this.listLoading = true;
         // 就是我们数据库的id
         this.$http.delete("/emp/"+row.id)
           .then(result=>{
             // 一定是删除成功
             this.listLoading = false;
             this.$message({
               message: result.data.msg,
               type: result.data.success?'success':'error'
             });
             // 刷新一下列表 是否跳转到第一页
             this.currentPage = 1;
             this.getEmployees();
           })
           .catch(result=>{
             // http请求不成功或者后端抛异常到前端了
             // 什么时候走catch 1. http请求不同 2.后端将异常抛给前端了
             this.$message({
               message: "没整出来哦，再改改？",
               type: 'error'
             });
           })
       }).catch(() => {
         // 取消走这里

       });
     },
       //显示编辑界面
       handleEdit: function (index, row) {
         this.editFormVisible = true;
         this.title = "编辑"
         this.editForm = Object.assign({}, row);
       },
       //显示新增界面
       handleAdd: function () {
         this.editFormVisible = true;
         this.title = "新增"
         // 是将表单 置空
         this.editForm = {
           id:null,
           username:'',
           phone:'',
           email:'',
           age:null,
           state:1,
           departmentId:null,
         };
       },
       //编辑
       editSubmit: function () {
         this.$refs.editForm.validate((valid) => {
           if (valid) {
             this.$confirm('确认提交吗？', '提示', {}).then(() => {
               this.editLoading = true;
               // 将editForm表单的数据 拷贝到 一个对象中 为什么要这么做？
               let para = Object.assign({}, this.editForm);

               // 发送请求 新增/修改
               this.$http.put("/emp",para)
                 .then(result=>{
                   this.editLoading = false;
                   this.editFormVisible = false;
                   this.$message({
                     message: result.data.msg,
                     type: 'success'
                   });
                   this.currentPage = 1
                   this.getEmployees();
                 })
                 .catch(result=>{
                   this.$message({
                     message: "没整出来哦，再改改？",
                     type: 'error'
                   });
                 })
             });
           }
         });
       },

       /*
       * 监听是否有选择 函数的参数 选中一整行数据的数组
       * */
       selsChange: function (sels) {
         this.sels = sels;
       },
       //批量删除
       batchRemove: function () {
         // 类似于stream流 将数组中的id 封装成数组
         var ids = this.sels.map(item => item.id);
         this.$confirm('确认删除选中记录吗？', '提示', {
           type: 'warning'
         }).then(() => {
           this.listLoading = true;
           // 发送请求
           this.$http.patch("/emp",ids)
             .then(result=>{
               this.listLoading = false;
               this.$message({
                 message: result.data.msg,
                 type: 'success'
               });
               // 刷新一下列表 是否跳转到第一页 你们自己玩
               this.currentPage = 1;
               this.getEmployees();
             })
             .catch(result=>{
               this.$message({
                 message: "没整出来哦，再改改？",
                 type: 'error'
               });
             })
         }).catch(() => {

         });
       }
   },
  mounted() {
    this.getDepts();
    this.getEmployees();
  }
}

</script>

<style scoped>

</style>
